QSFP+ to 4 SFP+ Active Optical Splitter Cables by 3M provide IT professionals with a cost-effective fiber optic interconnect solution for merging 40-Gigabit Ethernet (40GbE) QSFP+ and 10-Gigabit Ethernet (10GbE) SFP+ enabled host adapters, switches and servers. For typical applications, users can install this splitter cable (a.k.a. octopus or "fan-out" cable) between an available QSFP/QSFP+ port on their 40-Gigabit/s rated switch and feed up to four upstream 10GbE-SFP+ enabled switches. Available in over a dozen lengths up to 50m (164') to meet your installation requirements.